<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>SourceBuffer example</title>
    <script src="script.js" defer></script>
  </head>
  <body>
    <video controls></video>
    <div>
      <button id="load">Load</button>
    </div>
  </body>
</html>
